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Electromagnetic heating system and start-up control method and device thereof

A heating system, electromagnetic technology, applied in electric heating devices, induction heating control, ohmic resistance heating and other directions, can solve the problem of electromagnetic heating system startup noise, etc., to increase the resonance current, reduce the effect of startup noise

Active Publication Date: 2022-03-25
FOSHAN SHUNDE MIDEA ELECTRICAL HEATING APPLIANCES MFG CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When starting the IGBT of the electromagnetic heating system in this way, the starting noise of the electromagnetic heating system is relatively large

Method used

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  • Electromagnetic heating system and start-up control method and device thereof
  • Electromagnetic heating system and start-up control method and device thereof
  • Electromagnetic heating system and start-up control method and device thereof

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Embodiment Construction

[0031] The following describes in detail the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary, and are intended to explain the present invention and should not be construed as limiting the present invention.

[0032] The following describes the electromagnetic heating system and the start-up control method and device of the embodiments of the present invention with reference to the accompanying drawings.

[0033] It should be noted that if figure 1 As shown, the electromagnetic heating system of the embodiment of the present invention may include a resonant circuit 10, a power switch 20 for controlling the resonant circuit to perform resonant operation, and a drive module 30 for controlling th...

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Abstract

The invention discloses an electromagnetic heating system and its start-up control method and device, wherein the electromagnetic heating system includes a resonant circuit, a power switch tube for controlling the resonant circuit to perform resonant work, and an output pulse driving signal for driving the power switch tube A drive module for turning on or off, the method includes the following steps: detecting the zero-crossing point of the AC power input to the electromagnetic heating system; at the first preset time before the zero-crossing point of the AC power supply, controlling the drive module to output the first pulse drive signal, and control the pulse width of the first pulse driving signal to increase the first preset increment in each pulse period; at the zero crossing point of the AC power supply, control the driving module to output the second pulse driving signal, and Periodically controlling the pulse width of the second pulse driving signal to increase by a second preset increment, and controlling the pulse width of the second pulse driving signal to increase to a rated pulse width within a second preset time.

Description

technical field [0001] The present invention relates to the technical field of electromagnetic heating, in particular to a startup control method of an electromagnetic heating system, a non-transitory computer-readable storage medium, a startup control device of an electromagnetic heating system, and an electromagnetic heating system. Background technique [0002] In the related art, the IGBT of the electromagnetic heating system can be started by inputting a pulse driving signal to the IGBT (Insulated Gate Bipolar Transistor, insulated gate bipolar transistor) of the electromagnetic heating system. When the IGBT of the electromagnetic heating system is started in this way, the start-up noise of the electromagnetic heating system is relatively large. SUMMARY OF THE INVENTION [0003] The present invention aims to solve one of the technical problems in the above technologies at least to a certain extent. Therefore, an object of the present invention is to propose a start-u...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05B6/06
CPCH05B6/06H05B2206/02
Inventor 雷俊卞在银王云峰张帆江德勇黄庶锋刘文华曾露添杜放
Owner FOSHAN SHUNDE MIDEA ELECTRICAL HEATING APPLIANCES MFG CO LTD
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